Supplement Signals
BuildingThe question. People keep asking which supplements I take. Could I answer once, with the studies behind it?
I'm from Rio de Janeiro. San Diego has had me since I was 13.
I fell for math as a kid because I loved solving problems, and I still do. It took me to economics and mathematics at USC, then to AI and jiu-jitsu, which turned out to be the same thing in different clothes.
Today I solve problems at Axos Bank, building AI tools for the commercial bank. Tomorrow, hopefully, the next hard one.
Each project sits where two or three of the things I love cross: soccer, jiu-jitsu, lifting, nutrition, AI and data. I take the question, build the thing that answers it, and use it.
The question. People keep asking which supplements I take. Could I answer once, with the studies behind it?
The question. How well could a simple, transparent model have called the 2026 World Cup?
The question. Could I call UFC fights with the one family of models my studies skipped?
The question. How do you program strength work around mat time, and track both?
Most of my work is solving problems for someone who wishes they didn't have them. I start by breaking the big, scary, ambiguous thing into a bunch of small components. Then I pressure-test my assumptions with the people who actually live with the problem. I plan the steps in detail, sometimes more than necessary, then execute from the plan and fold changes back into it. My ideas land in a handwritten journal or a messy notes app, because I've learned that creativity shows up when you least expect it. Execution means building the thing that removes the problem: sometimes a model, sometimes an AI agent, sometimes a whole new way of running a process.
Right now the problems are a bank's. I work on its internal consulting team, in AI strategy and solutions. The problems I solve outside work are on this site. They follow the same habits, pointed at my own questions and curiosities.
Growth, mostly. I want problems worth solving, in things I actually care about, and people worth solving them with. I want work I can own end to end: sitting with the people who have the problem, building the thing, and watching what they do with it. And I want to be slightly out of my depth, because that's where the growth is: a problem I haven't solved before, a room where I'm the least experienced person, a skill I'm still bad at. I look for that on purpose, at work and off it. I've found a good amount of it where I am, and I'll keep chasing it wherever it shows up. If you're working on something like that, I'd love to hear about it.
I split it into five pillars.
Physical. Jiu-jitsu, lifting, and runs on the beach with Skye. I just started surfing, and I'm looking at a speargun so I can try spearfishing.
Mental. Reading, painting and long walks. A healthy body and a healthy mind are two sides of the same coin: your thoughts change how you feel, and how you feel changes what you do. So I keep a few hobbies whose only job is to clear my head.
Spiritual. Journaling and meditation. Writing my thoughts out is how I get to know myself. Meditating is how I clear my mind and feel part of where I am.
Community. We evolved in packs, then villages, then cities. We're not solitary animals, so a lot of my time goes to people: the beach with friends, movies with my family, dinners, dates, and the crew from jiu-jitsu.
Learning. Curiosity is what got humans this far, so I feed mine. Mostly that's research papers on health: sunlight and circadian rhythm, sauna and ice baths, sleep, nutrition built on whole foods, and the supplements that help me recover. And I keep picking up new things, surfing and painting lately, because trying something new is how you end up better than you were yesterday.